Artificial dialyzing body organ



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Apr. 11, 1968, 849 0.G. 1221. Identification is by serial number of the application and the heading indicates the number of pages of specification, including claims, and of sheets of drawing contained in the application as originally filed. The file of this application is available to the public for inspection; reproduction may be purchased for 30 cents per sheet.

Applications published under the Defensive Publication Program have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED OCTOBER 21, 1969 763,804 ARTIFICIAL DIALYZING BODY ORGAN Lawrence A. Ulmschneider, 1669 Lake Ave., and Charles H. Benton, 755 Ridge Road W., both of Rochester, N.Y. 14650 Filed Sept. 30, 1968. Published Oct. 21, 1969 Int. Cl. BOld 13/00 US. Cl. 210321 2 Sheets Drawing. 14 Pages Specification An artificial body organ such as an artificial kidney or lung comprising a casing and flattened tubular dialysis membranes stacked in side-by-side laterally spaced relationship within the casing, providing a flow path for dialyzing fluid through the membranes, and a flow path for blood between the membranes. Each membrane contains a serrated core; and adjacent membranes are spaced apart by transverse strips or by thin sheets having transverse passage for blood flow.

. '76 3 8 041 Oct. 21, 1969 A. ULMSCHNEIDER ET AL DE'F. PUB.

' ARTIFICIAL DIALYZING BODY ORGAN Filed Sept. 50, 1968 v 2 Sheets-Sheet 1 I/VVEN TOPS CHARLES H BENTON LAWRENCE A. ULMSCH/VE/DER A 77' RNEYS /r 1 6 3,6 0 Oct. 21, 1969 L. A. ULMSCHNEIDER ET AL DEF. PUB.

ARTIFICIAL DIALYZING'BODY ORGAN Filed Sept. 30, 1968 2 Sheets-Sheet 2 CHARLES H. B'NTO/V LAWRENCE A. ULMSCH/VE/DER lg INVENTORS k B @M 

